Three roller film winder and method

Details Three roller film winder and method Three roller film winder and method

1997-05-30

1998-08-18

Blankenship, Howard B.

Photography

Disposable or recyclable camera

2425384, G03B 1702

Patent

active

057970459

ABSTRACT:
A three roller film winder and method for loading photographic film. In the method, a film cartridge is positioned in a cartridge chamber of a camera frame assembly. The camera frame assembly has the cartridge chamber, a supply chamber, and an intermediate section between the chambers. The film cartridge includes a spool and a filmstrip. The filmstrip has leading, main, and tail portions. A sleeve is introduced into the supply chamber. An upper roller is disposed over the sleeve. A pair of lower rollers are introduced into the supply chamber. The upper and lower rollers together define a substantially cylindrical scroll space. The leading portion of the filmstrip is advanced out of the cartridge and into the sleeve. The leading portion is curled within the sleeve and scroll space into an initial filmstrip scroll having at least one turn. The sleeve is retracted after the curling step. The main portion of the filmstrip is propelled between the upper and lower rollers to wind the main portion over the initial scroll. During the propelling, the spatial separation of the lower rollers from the upper roller is increased. This increases the diameter of the scroll space. The rollers are removed and the camera frame assembly is light-tightly closed.

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